Speed-regulator for explosion-engines.



No. 783,121. PATENTED FEB. 21, 1905.

I E. MARTIGNONI.

SPEED REGULATOR FOR EXPLOSION ENGINES.

APPLICATION FILED SEPT. 26. 1903.

2 SHEETS-415E151 1.

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PATENTED FEB. 21, 1905.

E. MARTIGNONI.

SPEED REGULATOR FOR EXPLOSION ENGINES.

APPLICATION FILED SEPT. 26. 1903.

2 SHEETS-SHEET 2.

W/T/VESSES: 7M4; W

" UNTTED STATES Patented February 21, 1905.

PATENT OEETcE.

EMILE MARTIGNONI, OF PARIS, FRANCE, ASSIGNOR TO SOCIETE ANONYME DES MOTEURS ET AUTOMOBILES HERALD, OF PARIS, FRANCE.

SPEED-REGULATOR FOR EXPLOSION-ENGINES.

SPECIFICATION forming part of Letters Patent No. 783,121, dated February 2]., 1905.

Application filed September 26, 1903, Serial No. 174,836.

To all whom it may concern:

Be it known that I, EMILE MARTIGNONI, a citizen of the Republic of France, residing in Paris, France, have invented certain new and useful Improvements in Speed-Regulators for Explosion-Engines, of which the following is a specification.

The object of this invention is to simplify and render more certain the speed-regulator of such engines. A governor is provided which controls the valve situated in the path of the combustible mixture, between the carbureter and the cylinders. This valve is arranged in such a manner that theadmission of the mixture is interrupted and replaced by fresh air when the speed of the motor becomes too great, so that by this means the cylinders are both cooled and cleansed at such times, an internal spring-regulator being provided within reach of the driver which permits of modifying the speed of the motor at will by diminishing or increasing merely by the displacement of a rod the power of the governor-springs.

The accompanying drawings illustrate an embodiment of the invention.

Figure 1 is a front elevation of the mechan-' of any suitable kind is mounted at f, and thecarbureted mixture traverses a box 9, provided with an obturating-piston controlled by the governor, and proceeds through the pipe it to a pipe c', which distributes it to the cylinders.

The governor 9 is connected bya lever 10, Fig. 1, to a shaft 11, mounted in supports 12, latera1ly of the gear-case of the machine.

box 9. This piston constitutes the essential part .of the-device for intercepting the admission of the mixture and for admitting air into the cylinders, thereby permitting of automatically retarding the machine under the action of the governor.

The mixture coming from the carburetor enters the apparatus through the lateral conduit 18 and enters the chamber 20 through the orifice 21, the diameter of which is equal to that of the piston 16. It then proceeds to the admission-valves through the vertical conduit 22 and the pipe 72 On the other hand, the cylinder 20 is in communication with the outer air by means of the conduit 23, provided with a strainer of metallic gauze mounted upon a cage 24. Under the influence of the governor the piston 16 is displaced in its cylinder, obtu rating to a greater or less extent the passage for the carbureted air, which enters the various cylinders of the motor in suitable quantities. When the speed of the motor becomes too great, the piston 16 completely closes the orifice 21 and absolutely prevents the admission of the mixture into the cylinders. The piston continuing its stroke in the same direction uncovers the conduit 23, thus placing in communication this latter and the dischargeconduit 22 of the cylinders, these latter then only sucking in pure air from outside, thereby cooling and cleansing the cylinders.

The accelerator shown in longitudinal section in Fig. 8 consists of a rod 28, inclosed in a tube 29, connected by a fork 30 to a lever 31, keyed upon the shaft 11, which is itself connected with the governor 9 by the rod 10. A spiral spring 32, wound around the inner rod 28, bears upon a collar 33, fixed upon this rod and also upon the inner faceof an adjustable screw-threaded socket 34. Thus the acceleration regulator or adjuster, Fig. 8, controls the admission of combustible mixture absolutely. The piston-rod 15 is connected, through the link 14, to the arm 13 on the rockshaft 11, whose arm 31 is extended on the opposite shaft to form the arm 10, engaging the sliding sleeve of the governor 9, the arm 31 being connected to the tube 29, so that the spring 32 is, in effect, interposed between the arm 31 and the rod 28. WVhen by means of appropriate transmission-gear a pulling effort is exerted upon the extremity of the rod 28, the spring 32 is compressed by a certain amount, which may be varied. at will, from which follows an increase of the total tension which must be overcome by the balls of the governor before they are able to separate. The motor is thus able to rotate at a greater speed without the governor acting in such a manner as to cause the admission of the mixture to the cylinders to diminish or cease entirely.

Though I have described with great particularity of detail a certain embodiment of the invention, yet it is not to be understood therefrom that the invention is limited to the specific embodimentdisclosed. Modifications thereof may be made in detail and in the ar- 2o rangement and combination of the parts by those skilled in the art withoutdeparture from the invention.

What I claim is- 1-. In an explosion-motor, in combination, a

cylinder, a carburetor, a chamber 20 communicating with said cylinder and having a cylindrical portion with ports at opposite ends communicating with said carbureter and the atmosphere respectively, a hollow piston 16 in said cylindrical portion, a piston-rod 15, a

.link 14: connected thereto, a transverse shaft 11 having near one end an arm 13 connected to said link, a governor, a fork '10 upon said shaft engaging the sliding member of the govcrnor whereby the piston obstructs more or less the passage of the combustible mixture according to the velocity of the motor, and interrupts the supply of the mixture completely and admits only pure air when the ve- 0 locity reaches a predetermined limit in order to cool and cleanse the cylinders, a speed-regulator 29 including a spring 32 and arranged at the opposite side of the motor from thelink '14, said regulator and link being extended parallel with the length of the motor, and an arm 31 on the end of said shaft 11 opposite the arm 13 and connected to said regulator 29, whereby said regulator is connected directly to said piston 16 to regulate its position and 5 'whereby the pull upon said regulator determines the resistance of the spring to the ac tion of the governor according to the speed at which the motor is to run.

2. In an explosion-motor, in combination, a

cylinder, a carbureter, a chamber 20 communicating with said cylinder and having a cylind rical portion with ports at opposite ends communicating with said carbureter and the atmosphere respectively, a hollow piston 16 in said cylindrical portion, a piston-rod 15, a link 14 connected thereto, a shaft 11 having an arm 13 connected to said link, a governor, a fork on said shaft engaging the sliding member of the governor, whereby the piston obstructs more or less the passage of the combustible mixture according to the velocity of the motor and interrupts the supply of the mixture completely and admits only pure air when the velocity reaches a predetermined limit, in order to cool and cleanse the cylinders, and a speed-regulator comprising a rod 28 and a spring 32 interposed between said rod and an arm 31 on said shaft whereby said regulator is connected directly to said piston 16 to regulate its position and whereby the pull upon said rod determines the resistance of the spring to the action of the governor according to the speed at which the motor is to run.

3. In an explosion-motor, in combination, a cylinder, a carbureter, a chamber 20 communicating with said cylinder and having a cylindrical portion with ports at opposite ends communicating with said carbureter and the atmosphere respectively, a hollow piston 16 in said cylindrical portion, a piston-rod 15, a link 14 connected thereto, ashaft 11 having an arm 13 connected to said link, a governor, a fork on said shaft engaging the sliding member of the governor, whereby the piston obstructs more or less the passage of the combustible mixture according to the velocity of the motor and interrupts the supply of the mixture completely and admits only pure air when the velocity reaches a predetermined limit, in order to cool and cleanse the cylinders, and a speed-regulator comprising a tube 29, a rod 28 guided longitudinally therein, a spring 32 surrounding said rod, a collar 33 fixed upon said rod at one end of said spring and a socket 3 1 in the tube at the opposite end of the spring, said tube being connected to an arm 31 on said shaft whereby said regulator is connected directly to said piston 16 to regulate its position and whereby the pull upon said rod de termines the resistance of the spring to the action of the governor according to the speed at which the motor is to run.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

EMILE lVIARTIGNONI.

Witnesses:

MAROEL ARMENGAUD, J eune, AUeUsTUs E. lNGRAM. 

